MHT CET 2026 Chemistry question

Chemistry Classification of Elements and Periodicity in Properties MHT CET 2026

Which element from following has positive electron gain enthalpy?

(A)XenonCorrect
(B)Bromine
(C)Iodine
(D)Chlorine

Answer: (A)

Solution

Electron gain enthalpy is negative (energy released) when an atom readily accepts an electron to reach a stable configuration. Halogens (Cl, Br, I) have a high tendency to gain one electron to attain the noble-gas configuration, so their electron gain enthalpies are strongly negative (Cl is

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Question ID VK-101611